(1. 昆明理工大學(xué) 材料科學(xué)與工程學(xué)院，昆明 650093；
2. 昆明理工大學(xué) 稀貴及有色金屬先進(jìn)材料教育部重點(diǎn)實(shí)驗(yàn)室
云南省新材料制備與加工重點(diǎn)實(shí)驗(yàn)室，昆明650093)
摘 要: 采用原位反應(yīng)合成法制備CuO含量分別為10%、12%、15%的AgCuO電觸頭材料，在不同電流條件下對(duì)這3種觸頭材料的燃弧時(shí)間、燃弧能量、熔焊力、接觸電阻等電接觸性能進(jìn)行了測(cè)試分析。結(jié)果表明：AgCuO電觸頭材料的分?jǐn)嗳蓟r(shí)間隨CuO含量的增加而增大；CuO含量為10%的樣品(AgCuO(10))分?jǐn)嗳蓟r(shí)間最為穩(wěn)定；隨電流的增大，AgCuO電觸頭材料的熔焊力不同程度地增加；電流小于20A時(shí)，CuO含量為12%的AgCuO(12)抗熔焊性較好；電流大于20A后，CuO含量為10%的AgCuO(10)抗熔焊性較好。原位反應(yīng)合成法制備的AgCuO電觸頭材料的接觸電阻隨電流增大呈現(xiàn)出下降的趨勢(shì)。
關(guān)鍵字: AgCuO；燃弧時(shí)間；燃弧能量；熔焊力；接觸電阻
（1. Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China;
2. Key Laboratory of Advanced Materials of Yunnan Province, Key Laboratory of Rare-Precious and Nonferrous Metal
Advanced Materials, Ministry of Education, Kunming University of Science and Technology, Kunming 650093, China）
Abstract:AgCuO electrical contact material was prepared by in-situ reaction synthesis method, in which CuO content were 10%, 12%, 15%. Under different current conditions, the three kinds of contact materials properties of arc duration, arc energy, welding force, contact resistance were investigated. The results show that, with the increase of CuO content, the breaking arc duration of AgCuO electrical contact material increases. AgCuO (10) is more stable than the other samples of breaking arc duration. With the increase of current, the welding force of AgCuO electrical contact materials increases in different degrees. When the current is less than 20A, AgCuO (12) in the fusion welding performance is better than others. When the current is greater than 20A, AgCuO (10) in the fusion welding performance is more excellent. The contact resistance of in-situ reaction synthesis of AgCuO electrical contact material decreases with the increase of current.
Key words: AgCuO; arc duration; arc energy; welding force; contact resistance
